Figure 1.

Graphical representations of estimated structural equation models of between‐person differences in white matter microstructure. A: A model postulating specific, but related, tract factors. Latent factors are depicted with circles, observed variables with rectangles, regressions with one‐headed arrows, and covariances with two‐headed arrows. CCG, cingulum cingulate gyrus; CHC, cingulum hippocampus; CS, corticospinal tract; FMAJ, forceps major; FMIN, forceps minor; IFOF, inferior fronto‐occipital fasciculus; SLF, superior longitudinal fasciculus; L, left; R, right; e, error. B: An alternative model postulating a general factor of white matter microstructure.